Integers & Square Roots Review

Vocabulary

100

- Define and give an example of "opposites"

- Define and give an example of a "square root"

- 2 integers that are the same distance from 0

- √ symbol. √25 = 5

200

- Draw a number line with negatives and positives

- Give an example of a "perfect square"

- answers vary

- √9, √16, √100, etc.

300

- When you add 2 opposites, the answer is always....

- True or false: √5 is an irrational number

- 0

- True

400

- True or false: Decimals are integers

- True or false: √100 is a perfect square

- False. Integers are positive and negative whole numbers.

- True

500

- True or false: 0 is a positive integer

- True or false: repeating decimals have a bar over the digit or digits that repeat in a pattern

- False. 0 is neither positive or negative

- True

Integers & Square Roots

100

• -5 + 2 =

• √4 =

• -3

• 2

200

•  1 + (-1) =

• Is this a terminating decimal? 0.45

• 0

• Yes

300

• -5 + -4 =

• -√81

• -9

• -9

400

• 12 + -20 =

• √121

• -18

• 11

500

• 50 + -34 =

• √160 =

• 16

• 20

Double Digits & Rounding

100

• 30 + (-10) =

• Round to the nearest tenth: 1.34

• 20

• 1.30

200

• 10 - (-2) =

• -√144 =

• 12

• -12

300

• -40 + (-20) =

• Round to the nearest tenth: 3.55

• -60

• 3.60

400

• 49 + (21) =

• Round to the nearest tenth: 10.22

• 70

• 10.20

500

• 22 - (-18) = 

• Round to the nearest tenth: 8.88

• 40

• 8.90

MORE Double Digits & Rounding

100

• -84 + (-11) =

• Round to the nearest hundredth: 3.375

• -95

• 5.380

200

• -99 + (-10) =

• Round to the nearest hundredth: 10.013

• -109

• 10.010

300

• 87 + (-4)

• Round to the nearest hundredth: 8.888

• 83

• 8.890

400

• 77 - (-22) =

• Round to the nearest hundredth: 0.345

• 99

• 0.350

500

• -33 + 42 =

• Round to the nearest hundredth: 9.543

• 9

• 9.540

RANDOM!

100

• What does having "negative" money mean?

• Is the square root of 34 a perfect square?

• being in debt, owing money you don't have, etc.

• No

200

• What is larger: -18 or -81?

• What is larger: √4 or √9?

• -18

• √9

300

• What is larger: -8 or 8?

• What is larger: √121 or √100?

• 8

• √121

400

• What is larger: -28 or -27?

• What is larger: √81 or 10.0?

• -27

• 10.0

500

• What is larger: -1,778 or -1,878?

• What is larger: √49 or 6.2?

• -1,778

• √49